add key and data size limit check in db->put. closes #50

git-svn-id: file:///svn/tokudb@831 c7de825b-a66e-492c-adef-691d508d4ae1

src/tests/test_kv_limits.c

@@ -0,0 +1,89 @@
+/* -*- mode: C; c-basic-offset: 4 -*- */
+#ident "Copyright (c) 2007 Tokutek Inc.  All rights reserved."
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <unistd.h>
+#include <string.h>
+#include <arpa/inet.h>
+#include <sys/stat.h>
+#include <db.h>
+
+#include "test.h"
+
+DBT *dbt_init(DBT *dbt, void *data, u_int32_t size) {
+    memset(dbt, 0, sizeof *dbt);
+    dbt->data = data;
+    dbt->size = size;
+    return dbt;
+}
+
+DBT *dbt_init_malloc(DBT *dbt) {
+    memset(dbt, 0, sizeof *dbt);
+    dbt->flags = DB_DBT_MALLOC;
+    return dbt;
+}
+
+
+
+void test_key_size_limit(int dup_mode) {
+    if (verbose) printf("test_key_size_limit:%d\n", dup_mode);
+
+    DB_ENV * const null_env = 0;
+    DB *db;
+    DB_TXN * const null_txn = 0;
+    const char * const fname = DIR "/" "test.rand.insert.brt";
+    int r;
+
+    system("rm -rf " DIR);
+    r=mkdir(DIR, 0777); assert(r==0);
+
+    /* create the dup database file */
+    r = db_create(&db, null_env, 0);
+    assert(r == 0);
+    r = db->set_flags(db, dup_mode);
+    assert(r == 0);
+    r = db->open(db, null_txn, fname, "main", DB_BTREE, DB_CREATE, 0666);
+    assert(r == 0);
+
+    void *k = 0;
+    void *v = 0;
+    int lo = 0 , mi = 0, hi = (1<<24);
+    int bigest = -1;
+    while (lo <= hi) {
+        mi = (lo + hi) / 2;
+        int ks = mi;
+        if (verbose) printf("trying %d %d %d ks=%d\n", lo, mi, hi, ks);
+        int vs = ks;
+        k = realloc(k, ks);
+        memset(k, 0, ks);
+        memcpy(k, &ks, sizeof ks);
+        v = realloc(v, vs);
+        memset(v, 0, vs);
+        memcpy(v, &vs, sizeof vs);
+        DBT key, val;
+        r = db->put(db, null_txn, dbt_init(&key, k, ks), dbt_init(&val, v, vs), 0);
+        if (r == 0) {
+            bigest = mi;
+            lo = mi+1;
+        } else {
+            if (verbose) printf("%d too big\n", ks);
+            hi = mi-1;
+        }
+    }
+    assert(bigest > 0);
+    if (verbose && bigest >= 0) printf("bigest %d\n", bigest);
+
+    r = db->close(db, 0);
+    assert(r == 0);
+}
+
+int main(int argc, const char *argv[]) {
+    parse_args(argc, argv);
+
+    test_key_size_limit(0);
+    test_key_size_limit(DB_DUP + DB_DUPSORT);
+
+    return 0;
+}